ca-clipper deployed in large organization

We are in the process of developing apps for a manufacturing company and we are stump as to which programming language will be best. The apps wil include all accounts, production, warehousing, etc. and we estimate that it would involve a rather large database. We are thinking of using the ca-clippper language to develop the apps.

Pls give us you opinions and advices. We truly appreciate all opinions and advices.